[ovs-dev] ovs-dpdk vxlan tunnel does not work

[Flavio Leitner]

On Mon, Aug 10, 2020 at 09:27:32AM +0800, yuelongguang wrote:
> Hi, all.
> 
> two nodes: ovs 2.12.0, kernel 3.10.0-1062,  centos 7.7, dpdk 18.11.8,  x722  for 10gbe sfp+,  each of which has one running vm.  
> 
> 
> the flows of br-int and br-tun are NORMAL,   local_ip and remote_ip are reachable.  
> tunnel vxlan0  , options: {key="20", local_ip="192.168.5.133", remote_ip="192.168.6.131"}
> vhostclient--->br-int------->br-tun  --->dpdkbr0(192.168.5.133)===physical switch=======
> 
> ovs-tcpdump can capture ping packets on vxlan0 , butpackets are not encapsulated on vxlan0 , and not forwarded to dpdkbr0.
> my question is  that   does vxlan needs specific openflow rules ? what the specific flows are?

Try using ofproto/trace to find out what happens with the packet
coming from VM and post the output here, see the blog post below:
https://developers.redhat.com/blog/2016/10/12/tracing-packets-inside-open-vswitch/

-- 
fbl